Fatigue characterization of a hydroxyapatite-reinforced polyethylene composite. II. Biaxial fatigue

A Bioglass® reinforced polyethylene (Bioglass®/polyethylene) composite has been prepared, which combines the high bioactivity of Bioglass® and the toughness of polyethylene. The spatial distribution of Bioglass® particles within the composite is important for the performance of composites in-vivo. Recent developments in X-ray microtomography (XμT) have made it possible to visualize internal and microstructural details with different X-ray absorbencies, nondestructively, and to acquire 3D information at high spatial resolution. In this study, the volume fraction and 3D spatial distribution of Bioglass® particles has been acquired quantitatively by XμT. The information obtained provides a foundation for understanding the mechanical and bioactive properties of the Bioglass®/polyethylene composites.

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Mechanical Characterization of a Nanotube-Polyethylene Composite Material

Materials ◽

10.1115/imece2003-43351 ◽

2003 ◽

Cited By ~ 1

Author(s):

Michael H. Santare ◽

Wenzhong Tang ◽

John E. Novotny ◽

Suresh G. Advani

Keyword(s):

Wear Resistance ◽

Carbon Nanotube ◽

Matrix Material ◽

Peak Load ◽

Composite Films ◽

Melt Processing ◽

Polyethylene Composite ◽

Punch Test ◽

The Matrix

High-density polyethylene (HDPE) was used as the matrix material for a carbon nanotube (CNT) polymer composites. Multi-wall carbon nanotube composite films were fabricated using the melt processing method. Composite samples with 0%, 1%, 3% and 5% nanotube content by weight were tested. The mechanical properties of the films were measured by the small punch test and wear resistance was measured with a block-on-ring wear tester. Results show increases in the stiffness, peak load, work-to-failure and wear resistance with increasing nanotube content.

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Synthesis and Characterization of Porous Nano-Crystalline Barium Hexaferrite

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.622-623.860 ◽

2012 ◽

Vol 622-623 ◽

pp. 860-863

Author(s):

S. Hamidizadeh ◽

A. Ataie ◽

Amin Nozari

Keyword(s):

High Density Polyethylene ◽

Single Phase ◽

Barium Hexaferrite ◽

Weight Percent ◽

High Energy ◽

High Density ◽

Synthesis And Characterization ◽

Polyethylene Composite ◽

Nano Crystalline

Barium hexaferrite/high density polyethylene composite was prepared from synthesized barium hexaferrite as matrix with 0, 10, 20, 30, 40 wt.% of high density polyethylene via a high energy planetary ball milling for 10 h. The milling products were isostatically pressed and finally sintered at 1250 °C for 1 h. Effect of HDPE content on morphology of the products were investigated using scanning electron microscope (SEM). Vibrating samplemagnetometer (VSM) analysis of single phase BaFe12O19 indicates saturation magnetization and coercivity of 52 emu/g and 4300 Oe, respectively. Visually, as the weight percent of the HDPE increases, more porous structure was observed. Moreover, the density of the sintered sampleslinearly decreased from 4.16 to 1.41 g/cm3 by increasing the amount of HDPE from 0 to 40 wt.%.

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Preparation and Characterization of MWCNT/Ultrahigh-Molecular-Weight Polyethylene Composite Fiber

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.627.761 ◽

2012 ◽

Vol 627 ◽

pp. 761-764

Author(s):

Tao Zhang ◽

Tian Ma ◽

Jian Chun Zhang ◽

Peng Gang Gao ◽

Hua Zhang ◽

...

Keyword(s):

Molecular Weight ◽

Precursor Solution ◽

Ultrahigh Molecular Weight Polyethylene ◽

Composite Fiber ◽

Gel Spinning ◽

Polyethylene Composite ◽

Ultrahigh Molecular Weight ◽

Aggregation Structure ◽

Uhmwpe Fibers

MWCNT/Ultrahigh-molecular-weight polyethylene (MWCNT/UHMWPE) composite was prepared by adding purified MWCNTs into the precursor solution of UHMWPE. Based on that, MWCNT/UHMWPE fibers were obtained using a gel spinning-molding technique. The thermal, mechanical and aggregation structure of MWCNT/UHMWPE fibers were characterized by TGA, mechanical property measurement and XRD, respectively. The results indicated the incorporation of MWCNTs into UHMWPE macromolecular chains have not change the aggregation structure of UHMWPE significantly, and the as-prepared MWCNT/UHMWPE fibers have evidently improved thermal stability and mechanical strength compared with the pristine UHMWPE fibers.

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